Richard Gardiner (Irish priest) explained

Richard Gardiner was Dean^[1] of St Patrick's Cathedral, Dublin from 1238^[2] until 1250.^[3]

Notes and References

1. https://www.stpatrickscathedral.ie/the-deans-of-saint-patricks-cathedral/ St Patrick's Cathedral, Dublin
2. "Fasti Ecclesiae Hibernicae: The succession of the prelates Volume 2" Cotton, H. p92 Dublin, Hodges & Smith, 1848-1878
3. Handbook of British Chronology By Fryde, E. B;. Greenway, D.E;Porter, S; Roy, I: Cambridge, CUP, 1996, 9780521563505